Coal Age

JUL-AUG 2018

Coal Age Magazine - For more than 100 years, Coal Age has been the magazine that readers can trust for guidance and insight on this important industry.

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JULY/AUGUST 2018 VOL. 123 NO. 6 July/August 2018 1 feature articles 14 Full-scale Testing Demonstrates That a New Mixture Performs as Well as Rock Dust Even though U.S. coal operators could benefit from the use of a new rock dusting product, regulators refuse to acknowledge the results 20 Monster Wall: Considerations for the Next Major Leap in Longwall Mining What started as a what-if conversation at CONSOL Energy about 2,000 ft longwall faces may someday become a reality 24 Perfecting Products for a Dynamic Market The best-selling collision avoidance systems are maturing, evolving and finding their place in an industry transitioning to full automation 28 Capture Savings Through Better Lubrication Management Recent studies suggest that mine fleet operators aren't taking maximum advantage of lubrication technologies and services to reduce operating costs 34 The Short-term Outlook for Global Metallurgical Coal Supply concerns push the market higher coal in the news 4 Cumberland Encounters Difficult Geology 5 NMA: Americans Agree Coal Plants Deserve Government Support 6 NTEC Buys Stake in the Four Corners Power Plant 8 Vectren Coal Plant Retirement Continues Trend of Closings 10 FirstEnergy Solutions Trying to End Coal Supply Contract With Murray Energy 11 EPA Approves First State Coal Ash Permit 12 DOL Seeks Input on Study of Respirable Coal Mine Dust Rule world news 5 Court Levies Hefty Jail Sentences for Soma Mine Disaster 6 Coal to Pass Iron Ore as Top Australian Export 7 Indonesian Coal Output Rising in 2018 departments 2 Editorial 4 News 5 World News 8 People 10 Awards 12 Calendar 38 Operating Ideas 40 Suppliers News 42 Product News 46 Classifieds 48 Legally Speaking This month, Coal Age wades into the wet rock-dust dilemma. The photography on the cover depicts three full-scale explosion tests in South Africa. They are stills pulled from a video that can be viewed at this issue NEWS/ 4 COLLISION AVOIDANCE/ 24 MET COAL OUTLOOK/ 34 ROCK DUST/ 14

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